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setting up my 3rd party router with 3801hgv


setting up my 3rd party router with 3801hgv

i have searched for hours only to find outdated tutorials on this and have called at&t only to be told i will be charged 15$ for their help (not gonna happen)


i have the 3801hgv modem and im trying to use my linksys WRT54G2 for wifi i have looked at some outdated tutorials and managed to get some things working but it tells me i have limited connection when tryin to connect to my linksys. any help would be appreciated with this

Message 1 of 10

Re: setting up my 3rd party router with 3801hgv

dreamsy - Since it is still in the buffer from the last post I will post again even though I did not find who originated it. Is this one of those things you say is outdated?

1. Turn off DHCP on your router.
2. Change the link between the 2Wire router and your router to use the LAN ports on both ends.  (In other words, plug the cable from one of the LAN ports of the 2Wire to one of the LAN ports of your router.  Leave your router's WAN port empty).
3. Change the LAN IP address of your router to a static IP on the same subnet as the 2Wire router.  For example, if the 2Wire router is using 192.168.1.x, and the DHCP range is -, set your router to
4. If necessary, configure the wireless parameters on your router, such as SSID, encryption, pre-shared key, and MAC filtering.
Your wireless computers connected to your router will now be able to communicate with wired computers on the 2wire router since everything will be on the same subnet.
Message 2 of 10

Re: setting up my 3rd party router with 3801hgv

it was an offsite tutorial and everything u posted below is a foreign language to me not that computer savvy when it comes to this kinda stuff all im looking for is a straight forward step by step tutorial on how to use my linksys router for wifi instead of the built in one on the modem,i thought i had everything right because it was allowing me to connect to linksys but it had a limited connection notification preventing me from using the internet

Message 3 of 10
Not applicable

Re: setting up my 3rd party router with 3801hgv

The steps aviewer provided is about the best your going to get.  If you don't understand what he is telling you to do, it my be best to hire someone to do it for you.  You will have to have some "computer savvy"  to accomplish what your trying to do.


It would be like a main bearing going out in my engine and requesting a mechanic to give me step by step instructions on how to change it.  Their are so many different verabiles it's not going to happen.


With that said, maybe try linksys and see if they can walk you thru it free of charge?


I did locate this but not sure if it will assist at all:


Setting up IP Passthrough with 3rd Party Router


Connect a computer into one of the Ethernet ports on the back of the NVG510 using an Ethernet cable. Use another Ethernet cable to connect the WAN port of the 3rd party router to another of the Ethernet ports of the NVG510.


1. Open your browser and browse to


2. Under the Device section next to status click on "Device List"


3. Your IP Address/Name of your Computer and 3rd party router should show up in this list as the only two connected devices.


4. If you are not able to find out which device is which you may run the "ipconfig" command in windows by

  • Clicking Start, then Run, and enter "cmd", and click OK
  • or "Windows key + R" then type CMD and click OK
  • In the DOS-like window that appears, type "ipconfig” and press Enter. The ip address will not be the "Default Gateway" but will be in the same format and match one of the IPs in the "Device List" of the modem.


  • On an Apple OSX computer you will want to go to /Applications/Utilities/Network Utility
  • In the drop down make sure "Network Interface (en0)" is selected
  • In the "Interface Information" the IP  address will be next to "IP Address(es)"


5. Write down or copy the IP address and Mac Address from the Device list that isn't your computer and then Click on "Firewall" at the top


6. Below "Firewall" click on "IP Passthrough"


7. Under the IP Passthrough section fill in the following

  •     Allocation Mode: Passthrough
  •     Passthrough Mode: DHCPS-Fixed
  •     Passthrough Fixed MAC Address: (Mac address of the device from the Device List)


8. Click "Save" at the bottom and power cycle the NVG510 and the 3rd party router.


9. Unplug computer from NVG510 and connected to your router and wait for both to come back up.


10. Once both the NVG and router are up open a browser and verify you are able to browse.

Message 4 of 10

Re: setting up my 3rd party router with 3801hgv

cant do it the way u provided i only have one ethernet port available on my modem i guess ill have to look elsewhere or continue to use this crap wifi im being told how to do this as if im a technician idk anything about how to turn off dhcp or "link" lan ports and wan ports (whatever that is)

Message 5 of 10
Not applicable

Re: setting up my 3rd party router with 3801hgv

Well as a last resort you can try to send a Private Message to the ATTU-verseCare Community Specialist team.  One of the specialists will respond to your PM shortly.  Please look for the flashing envelope at the top right of the page for your response from a team member.


See if they can assist?  I'm not sure how far they will be able to go with you until you hit the technical road block.  I don't mean that in a condescending way, but just sayin....

Message 6 of 10

Re: setting up my 3rd party router with 3801hgv

ok after looking thru this some i almost got it just got a quick question


im on step 3 now where you change your lan ip address so does this mean i need to change the local ip address (ip address to get to my linksys router page) to or i also have something that says a starting ip address that i can change under setup

Message 7 of 10

Re: setting up my 3rd party router with 3801hgv

sorry to post again but i think i did it i just wanna verify heres what i did




after doing that i can now connect to wifi on this laptop thru linksys my next question is does this mean it is set up already for my other pcs that use wifi aswell or do i need to do something else for it to work on them,and do i need to disable wireless on my modem or do i need to keep it enabled

Message 8 of 10
Not applicable
Accepted by topic author
Accepted by dreamsy
‎09-30-2015 1:39 AM

Re: setting up my 3rd party router with 3801hgv

If you connected to the wireless on the linksys then disable the wireless on the A&T router.  The rest of your devices should connect wirelessly to the linksys just as you are now.  Find the wireless linksys network and then enter the password and off you go!!


See it wasn't too hard......

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Message 9 of 10

Re: setting up my 3rd party router with 3801hgv

thanks for the help off to go do that pesky port forwarding now idk why xbox one and xbox 360 cant work together

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